Nitrogen Cycle Summary | Tutorvista Nitrogen is an important structural component of many necessary compounds, particularly proteins. Atmosphere is the reservoir of free gaseous nitrogen and nitrogen compounds are found in bodies of organisms and in the soil. Living organisms cannot pickup elemental gaseous nitrogen directly from the atmosphere (except for nitrogen fixing bacteria). It has to be converted into nitrates to be utilised by plants. Nitrogen cycling involves several stages: Conversion of nitrogen into nitrates is called nitrogen fixation. 1) Atmospheric nitrogen fixation 2) Biological nitrogen fixation 3) Industrial nitrogen fixation Thunderstorms and lightning are the common photochemical and electrochemical reactions in nature, which convert atmospheric gaseous nitrogen to oxides of nitrogen. An average amount of 7.6 x 106 metric tonnes per year of nitrogen is estimated to be produced in nature. Chemical reactions are represented as: i) Rhizobium species in the root nodules of legumes (pea family) Proteins Ammonia
Make Your Own Ollas I first read about ollas (pronounced oh-yah) over at Little Homestead in the City. Basically it’s an ancient irrigation method that uses unglazed, porous clay pots buried within the root zones of plants. Water poured into the exposed necks of the pots (or pitchers) naturally seeps into the soil, providing a continuous supply of water to the plants. I’m intrigued by any method of watering that reduces consumption and is more natural. Ollas seem like the perfect answer, but premade ones can be expensive if you’re using them to irrigate everything. Then I found a gardener named Matt who posted an excellent how-to for making your own ollas using nothing more than inexpensive terra cotta pots. I followed Matt’s tutorial, and here’s how it went: This time of year they’re easy to find, and I bought these 15-inch pots for $1 each at Job Lot. You don’t want water flowing out of the bottom of your finished product. I should mention here that my adhesive of choice was Gorilla Glue. That’s it!
Global Buckets: Olla Irrigation (Clay Pot System) We've been inspired by Fan Sheng-chih Shu. His writings from the first century BC describe a method of irrigation where a unglazed clay pot is buried in the soil. When filled with water the clay pot turns into an amazing high-tech device. The micro-pores of the clay pot allows water to seep into the surrounding soil. A key characteristic is that the water seepage is regulated by the water needs of any nearby plant. Water Efficiency Combined with Liquid FertilizerSome designs (see below) allow you to bury the olla in the soil or potting mix. Combining Ollas with Global BucketsOnly one bucket is required and the use of power tools for drilling and cutting of buckets is eliminated. How to build your own Olla Global Bucket system:Step 1: Build the clay pot. Step 1: Build an Olla Seal the hole in what will become the bottom section of the clay pot. Next you'll need to attach the two clay pots together. We first use 100% waterproof Gorilla Glue. The finished product. A 4" clay pot is buried.
Experimenting With Ollas May 28th, 2009 The area of Central Texas where I live is under severe drought restrictions. Our well draws water from an underground lake called the Edwards Aquifer which requires rain to fall in a specific recharge zone for it to refill. Because of the dry conditions over the last few years, the aquifer is drastically low. To help ensure there is enough water to go around, our water conservation district is limiting ground water users to 3,000 gallons per person each month along with other restrictions such as watering plants by hand only. To help lower our water usage, I’ve started experimenting in the garden with ollas. Ollas (pronounced oh-yahs) are one of the oldest and most water efficient irrigation techniques available. As a small experiment, I planted two beds this spring with identical vegetables – one with ollas and a control bed without. Making Ollas Olla-making supplies: Unglazed terra cotta pot (2 per olla), tile, silicone. Ollas vs. Olla buried in the garden.
Remineralize The Earth How To Use Pee In Your Garden If you can get over the ewwww factor, pee-cycling your own urine into the garden makes good sense. Fresh urine is high in nitrogen, moderate in phosphorus and low in potassium and can act as an excellent high-nitrogen liquid fertilizer or as a compost accelerator. Components of Urine The exact breakdown of urine varies depending on the diet of the pee-maker. The more protein a person consumes, the more nitrogen will be excreted into the urine. Typical Western Diet pee has an NPK ratio of about 11-1-2. Urine also contains salt – sometimes quite a lot of it if you are hopped up on a diet of canned soup and french fries. Keep in mind that areas with a lot of rain (Seattle!) Fresh pee can have a pH anywhere from 5 to 9 depending on a person’s diet, but it tends to move toward neutral as it ages and breaks down when applied outside. Safety Issues In a healthy person, urine is sterile. If you are on medication, don’t fertilize with your pee. Grossness Issues 5 Ways To Use Pee In The Garden 1. 2.
Soil and Health Library Diagnosis Of Mineral Deficiencies In Plants By Visual Symptoms - Wallace, 1943 The processes concerned in the growth of plants are the subjects of study by plant physiologists and plant biochemists. A comprehensive account of these processes is outside the scope of the present work, the special object of which is to deal with the outward and visible signs of imperfections in the plant's activities caused by faulty mineral nutrition. Nevertheless it is useful to have before us the general features of the main processes involved and to realize that the symptoms we shall be discussing later have a physiological basis, and are not direct and unchangeable signs of the specific deficiencies but result from the derangement of the complicated mechanism of the plant's vital activities. The main processes involved in plant development may be summarized as follows: Absorption: Intake of water and mineral elements by the root system. With all plants there are well defined seasonal growth cycles. Major elements: Nitrogen, phosphorus, calcium, magnesium, potassium, sulfur.
Online Tool For Diagnosing Tomato Problems Posted on 01 July 2008 by tomatocasual.com By Michelle Fabio A world free of tomato-growing problems would be perfect indeed, but Tomato Casual has found a fabulous online tool for when your leaves show brown spots with yellow halos or the blossom ends of your tomatoes turn black. The Tomato Problem Solver from the Aggie Horticulture team at Texas A & M can help you diagnose and treat your tomato growing difficulties. From the home page of the user-friendly Tomato Problem Solver, you can choose a general tomato disorder from the choices: Green Fruit, Ripe Fruit, Leaf, Stem, and Root. From there are you taken to a series of photos that show the most common problems tomato growers encounter. Simply choose the photo that best matches the issue you’re having, and the Tomato Problem Solver will tell you the name of the problem, its symptoms, and also how to control the damage. By the way, if you’re curious about those brown spots with yellow halos?